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 ###Instrução: Qual torneio foi contra Daniel Elsner?
 ###Tabelas: CREATE TABLE runners-up (runners-up_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Opponent VARCHAR, Score VARCHAR) CREATE TABLE canadian_national_championships_and_canadian_open_together (canadian_national_championships_and_canadian_open_together_id AUTO_INCREMENT PRIMARY KEY, Year INT, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR, Mixed doubles VARCHAR) CREATE TABLE pro-am_event_finals:_5_4_titles_1_runner-up (pro-am_event_finals:_5_4_titles_1_runner-up_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Opponent in the final VARCHAR, Score VARCHAR) CREATE TABLE 2008___race_‘a’_tt_final_standings (2008___race_‘a’_tt_final_standings_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Rider VARCHAR, Team VARCHAR, Speed VARCHAR, Time VARCHAR) CREATE TABLE class_c:_4-4-0 (class_c:_4-4-0_id AUTO_INCREMENT PRIMARY KEY, Class VARCHAR, Wheel arrangement VARCHAR, Manufacturer VARCHAR, Year made VARCHAR, Quantity made VARCHAR, Quantity preserved VARCHAR)  
SELECT Tournament FROM runners-up WHERE Opponent = daniel elsner